Home / 86,169.33-129,258.10-27,005.51

Finding the Fourth Proportional to 86,169.33, 129,258.10 and 27,005.51

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Solution

The fourth proportional to 86,169.33, 129,258.10 and 27,005.51 is: 40,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,169.33 : 129,258.10 = 27,005.51 : x
  2. Step 2: Convert to fraction form
    86,169.33/129,258.10 = 27,005.51/x
  3. Step 3: Cross multiply
    86,169.33x = 129,258.10 × 27,005.51
  4. Step 4: Simplify right side
    86,169.33x = 3,490,680,912.13
  5. Step 5: Solve for x
    x = 3,490,680,912.13/86,169.33
  6. Step 6: Final answer
    x = 40,509.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.